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+/*
+ This is an example sketch to show the use of the FTP Client.
+
+ Please replace
+ YOUR_SSID and YOUR_PASS
+ with your WiFi's values and compile.
+
+ If you want to see debugging output of the FTP Client, please
+ select select an Serial Port in the Arduino IDE menu Tools->Debug Port
+
+ Send L via Serial Monitor, to display the contents of the FS
+ Send F via Serial Monitor, to fromat the FS
+ Send G via Serial Monitor, to GET a file from a FTP Server
+
+ This example is provided as Public Domain
+ Daniel Plasa <dplasa@gmail.com>
+
+*/
+#include <ESP8266WiFi.h>
+#include <LittleFS.h>
+#include <FTPClient.h>
+
+const char *ssid PROGMEM = "YOUR_SSID";
+const char *password PROGMEM = "YOUR_PASS";
+
+// tell the FTP Client to use LittleFS
+FTPClient ftpClient(LittleFS);
+
+// provide FTP servers credentials and servername
+FTPClient::ServerInfo ftpServerInfo("user", "password", "hostname_or_ip");
+
+void setup(void)
+{
+ Serial.begin(74880);
+ WiFi.begin(ssid, password);
+
+ bool fsok = LittleFS.begin();
+ Serial.printf_P(PSTR("FS init: %S\n"), fsok ? PSTR("ok") : PSTR("fail!"));
+
+ // Wait for connection
+ while (WiFi.status() != WL_CONNECTED)
+ {
+ delay(500);
+ Serial.printf_P(PSTR("."));
+ }
+ Serial.printf_P(PSTR("\nConnected to %S, IP address is %s\n"), ssid, WiFi.localIP().toString().c_str());
+
+ ftpClient.begin(ftpServerInfo);
+}
+
+enum consoleaction
+{
+ show,
+ get,
+ put,
+ wait,
+ format,
+ list
+};
+consoleaction action = show;
+
+String fileName;
+bool transferStarted = false;
+uint32_t startTime;
+
+void loop()
+{
+ // this is all you need
+ // make sure to call handleFTP() frequently
+ ftpClient.handleFTP();
+
+ //
+ // Code below just to debug in Serial Monitor
+ //
+ if (action == show)
+ {
+ Serial.printf_P(PSTR("Enter 'F' to format, 'L' to list the contents of the FS, 'G'/'P' + File to GET/PUT from/to FTP Server\n"));
+ action = wait;
+ }
+ else if (action == wait)
+ {
+ if (transferStarted )
+ {
+ const FTPClient::Status &r = ftpClient.check();
+ if (r.result == FTPClient::OK)
+ {
+ Serial.printf_P(PSTR("Transfer complete, took %lu ms\n"), millis() - startTime);
+ transferStarted = false;
+ }
+ else if (r.result == FTPClient::ERROR)
+ {
+ Serial.printf_P(PSTR("Transfer failed after %lu ms, code: %u, descr=%s\n"), millis() - startTime, ftpClient.check().code, ftpClient.check().desc.c_str());
+ transferStarted = false;
+ }
+ }
+
+ if (Serial.available())
+ {
+ char c = Serial.read();
+ if (c == 'F')
+ action = format;
+ else if (c == 'L')
+ action = list;
+ else if (c == 'G')
+ {
+ action = get;
+ fileName = Serial.readStringUntil('\n');
+ fileName.trim();
+ }
+ else if (c == 'P')
+ {
+ action = put;
+ fileName = Serial.readStringUntil('\n');
+ fileName.trim();
+ }
+ else if (!(c == '\n' || c == '\r'))
+ action = show;
+ }
+ }
+
+ else if (action == format)
+ {
+ startTime = millis();
+ LittleFS.format();
+ Serial.printf_P(PSTR("FS format done, took %lu ms!\n"), millis() - startTime);
+ action = show;
+ }
+
+ else if ((action == get) || (action == put))
+ {
+ startTime = millis();
+ ftpClient.transfer(fileName, fileName, action == get ?
+ FTPClient::FTP_GET_NONBLOCKING : FTPClient::FTP_PUT_NONBLOCKING);
+ Serial.printf_P(PSTR("transfer started, took %lu ms!\n"), millis() - startTime);
+ transferStarted = true;
+ action = show;
+ }
+
+ else if (action == list)
+ {
+ Serial.printf_P(PSTR("Listing contents...\n"));
+ uint16_t fileCount = listDir("", "/");
+ Serial.printf_P(PSTR("%d files/dirs total\n"), fileCount);
+ action = show;
+ }
+}
+
+uint16_t listDir(String indent, String path)
+{
+ uint16_t dirCount = 0;
+ Dir dir = LittleFS.openDir(path);
+ while (dir.next())
+ {
+ ++dirCount;
+ if (dir.isDirectory())
+ {
+ Serial.printf_P(PSTR("%s%s [Dir]\n"), indent.c_str(), dir.fileName().c_str());
+ dirCount += listDir(indent + " ", path + dir.fileName() + "/");
+ }
+ else
+ Serial.printf_P(PSTR("%s%-16s (%ld Bytes)\n"), indent.c_str(), dir.fileName().c_str(), (uint32_t)dir.fileSize());
+ }
+ return dirCount;
+}